Louisiana Sales Tax: Rates, Rules & Compliance Guide

Louisiana currently charges a 5% state sales tax rate. This is a temporary rate up from 4.45% and set to expire and go back down to 4.75% after December 31, 2029. Local areas, including parishes and cities, are allowed to add an additional tax, so the total rate can soar to 13.5% in some parts of the state.

Louisiana also taxes SaaS and specified digital products, and it taxes more services than most states do. If your business sells into Louisiana, you're dealing with one of the most complex sales tax systems in the country.

This Louisiana sales tax guide covers what's taxable, when you owe tax, how to register, how to calculate the right rate, and how to file and remit.

Louisiana Sales Tax at a Glance

Louisiana's state sales tax rate is 5%. It rose from 4.45% on January 1, 2025, as part of a tax reform package that also lowered the state's income tax rate. The higher rate is set to run through the end of 2029, then fall to 4.75% starting January 1, 2030.

The state also has approximately 415 local taxing jurisdictions across its 64 parishes. Local rates can run from 0% to 8.5%, which makes the current highest combined Louisiana sales tax rate 13.5%. With a combined rate of 10.11%, Louisiana has the highest combined sales tax rate in the country.

Louisiana’s tax rates can change from block to block, so relying on zip-code level sales tax rate lookup won’t work. Charge based on the sales tax rate at the buyer’s exact delivery address. The Louisiana Uniform Local Sales Tax Board maintains an official address-level rate lookup tool for this purpose. For example, the sales tax rate in New Orleans is the 5% state rate plus the 5% Orleans Parish rate for a total of 10%.

Louisiana's sales tax is administered through two separate systems. In-state businesses and anyone with physical presence use LaTAP, the state's online tax portal, along with parish-level channels. Remote sellers with no physical presence in Louisiana use the Louisiana Sales and Use Tax Commission for Remote Sellers, a single portal built specifically to simplify multi-parish compliance for out-of-state sellers.

Taxable Categories: What Louisiana Sales Tax Applies To

SaaS and Digital Products

SaaS is taxable in Louisiana effective January 1, 2025.

Louisiana defines SaaS as a "prewritten computer software access service." This covers charges for accessing vendor-hosted software, including productivity tools, CRM platforms, design and collaboration software, and cloud storage.

Other digital products are taxable too, including streamed or downloaded audiovisual works, digital audio, e-books, apps, games, and digital periodicals. Tax applies regardless of how the product is delivered or accessed.

Sphere automatically classifies your Louisiana transactions and applies the correct combined state and local rate to SaaS and digital product sales, so you don't have to track this rule change product by product.

Tangible Personal Property (TPP)

Physical goods sold in Louisiana are taxable at the combined state and local rate that applies at the delivery address. Two notable exceptions exist. Groceries purchased for home consumption are exempt from the state's 5% tax, though local parish taxes can still apply to grocery sales depending on where you're selling. Prescription drugs are fully exempt from both state and local sales tax.

Taxable Services

Louisiana taxes a broader list of services than most states. Taxable services include repairs and maintenance of tangible personal property, laundry and cleaning services, telecommunications services, and information services. Most professional and consulting services, like legal or accounting work, remain exempt. Find out more about taxable services in Louisiana here.

Monitoring: When Louisiana Sales Tax Applies to You

Economic Nexus Threshold

You have economic nexus in Louisiana once your gross sales into the state hit $100,000 in the current or previous calendar year. When your business triggers economic nexus in the state, that means you must register for a Louisiana sales tax permit and begin collecting sales tax from your buyers in the state.

Once you cross $100,000, you generally have 30 days to register and must begin collecting tax within 60 days of crossing the threshold. Sphere monitors your Louisiana sales in real time and flags you well before you approach the trigger point, so registration never catches you off guard.

Physical Nexus

Any physical presence in Louisiana creates sales tax nexus immediately, regardless of how much you sell. This includes having an office, employees, contractors, or inventory in the state, even inventory sitting in a third-party fulfillment center.

Marketplace Facilitators

If you sell through a marketplace like Amazon or Etsy, the marketplace facilitator is generally responsible for collecting and remitting Louisiana sales tax on those sales. If you also sell directly to Louisiana customers through your own website or store, outside the marketplace, you're still required to register and collect tax on those direct sales.

Registration: How to Register for Louisiana Sales Tax

In-State Sellers and Businesses With Physical Presence

If you have a physical presence in Louisiana, register with LaTAP. At the site, click “Register my Business” then follow the prompts to set up your sales tax account.

Historically, in-state businesses also had to register separately with every parish where they had a filing obligation, which made compliance across multiple parishes tedious and Louisiana one of the most complicated states in the US when it came to sales tax compliance. But as of February 2026, Louisiana rolled out a combined state and local return through Parish E-File, the online system run by the Louisiana Uniform Local Sales Tax Board. This lets businesses report state and local sales activity for each physical location in one uniform return instead of filing a separate return with every parish. It's important to note that this change affects how you file, not how you pay: payments still go out separately to the state and to each local taxing authority. More on that in the “Remittance” section below.

Remote Sellers Without Physical Presence

If you have no physical presence in Louisiana and you've crossed the $100,000 economic nexus threshold, register instead with the Louisiana Sales and Use Tax Commission for Remote Sellers. This single registration covers your state tax obligation and all applicable parish obligations together. And the good news is that remote sellers don't need to register separately with individual parishes.

Registration Fees

There is no fee to register for a Louisiana sales tax permit, whether you’re registering as an in-state or remote seller.

No time for admin? Sphere handles registration through both LaTAP and the Remote Sellers portal on your behalf, so your team doesn't have to manage two separate registration processes.

Calculation: Louisiana Sales Tax Rates

State and Local Rate

Louisiana's state rate is a flat 5%. Local parish and municipal rates layer on top of that, and combined rates run from about 8% to 13.5% depending on the exact delivery address.

Don't rely on zip code-based rate estimates. Louisiana's jurisdiction boundaries generally don't line up with zip code boundaries, which means two addresses in the same zip code can have completely different combined rates. If calculating manually, use the Louisiana Uniform Local Sales Tax Board's address-level lookup tool to confirm the correct rate for each transaction.

What the Rate Applies To

The combined rate applies to taxable tangible personal property, SaaS, specified digital products, and taxable services. Louisiana sources sales based on the destination, meaning the rate is determined by where the buyer receives the product or service, not where your business is located. Keep in mind that state-level exemptions, like the grocery exemption, don't always carry over to the local level, so a sale can be exempt from the state's 5% but still owe local tax.

Filing: How and When to File Louisiana Sales Tax Returns

Filing for In-State Sellers via LaTAP

In-state businesses file their state sales tax return through LaTAP, and Louisiana requires all sales tax returns to be filed electronically. As of February 2026, you also have the option to file a combined state and local return through Parish E-File instead of filing your state return through LaTAP and then filing separate local returns with each parish.

It’s important to note that you're still required to file a return for every assigned period, even if you had zero sales.

Filing for Remote Sellers via the Remote Sellers Commission

Remote sellers file both their state and parish returns together through the Louisiana Sales and Use Tax Commission for Remote Sellers portal. This single filing covers your entire Louisiana obligation in one submission, which is a major simplification compared to the parish-by-parish filing that in-state dealers historically dealt with.

Filing Deadlines

Every Louisiana sales tax filer, whether in-state or remote, follows the same deadline: returns and payments are due on or before the 20th day of the month following the close of the reporting period. If the 20th falls on a weekend or state holiday, the deadline moves to the next business day.

Filing Frequency Thresholds

The Louisiana Department of Revenue assigns your filing frequency, either monthly, quarterly, or annually, based on your prior-year tax liability. Higher-volume sellers generally file monthly, while lower-volume sellers may qualify for quarterly or annual filing. Louisiana doesn't publish a single specific dollar threshold for each frequency tier, so your assigned frequency will appear on your registration confirmation and any subsequent notice from the state.

Late Filing Penalties

Louisiana charges a delinquent filing penalty of 5% of the tax due for each 30-day period a return is late, up to a maximum of 25% of the tax due. A separate 5%-per-30-day penalty, also capped at 25%, applies if you file on time but don't remit the full amount owed. Interest also accrues on any unpaid balance. These penalties apply under Louisiana Revised Statute 47:1602.

Remittance: How to Pay Louisiana Sales Tax

In-State Remittance via LaTAP

In-state businesses remit their state sales tax payment through LaTAP via ACH debit at the time of filing. If you file local returns through Parish E-File, you'll remit parish-level payments separately through that system. It’s important to note that even under the new combined return, state and local payments aren't consolidated into a single payment. Only the filing itself is combined.

Remote Seller Remittance

Remote sellers remit both state and parish taxes through the Louisiana Sales and Use Tax Commission for Remote Sellers portal, using US bank account details for ACH debit. This covers your full Louisiana payment obligation in one transaction.

Remittance for Foreign Businesses

If your business doesn't have a US bank account, you can't complete an ACH debit through LaTAP or the Remote Sellers portal directly. Sphere's embedded remittance platform handles payment on your behalf, so foreign businesses without US banking relationships can still meet their Louisiana payment obligations on time.

How Sphere Helps With Louisiana Sales Tax Compliance

Louisiana's split registration system, their approximately 415 local taxing jurisdictions, and their recent SaaS taxability changes make it one of the more demanding states to stay compliant in. Sphere handles the full process for you.

Sphere monitors your Louisiana sales and alerts you before you cross the $100,000 economic nexus threshold. It manages registration through both LaTAP and the Remote Sellers portal, calculates the correct combined rate for every transaction based on the buyer's exact delivery address across all of Louisiana's local jurisdictions, files your returns on schedule, and remits payment. Sphere also manages exemption certificates and supports foreign businesses through embedded remittance, so a missing US bank account never becomes a compliance gap.